TABLE 3.
CFA results.
| Factors | Factor loading | Mean |
| Factor 1 Perceived Usefulness of Vaccine Passport | ||
| 1. It is convenient to use when the vaccine passport/certificate comes out as a paper or digital format. | 0.889 | 5.160 |
| 2. Using vaccine passport/certificate when traveling is helpful as it reduces separate testing for COVID-19. | 0.843 | 4.940 |
| 3. Vaccine passport/certificate gives me faster access to travel without a two-week quarantine. | 0.869 | 5.040 |
| 4. Vaccine passport/certificate use improves the quality of travel. | 0.896 | 5.020 |
| 5. Vaccine passport/certificate will be useful during traveling. | 0.850 | 5.100 |
| 6. Using the vaccine passport/certificate will be fit my needs. | 0.916 | 5.070 |
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| Factor 2 Destination trust for vaccine passport | ||
| 1. I believe that destinations that accept vaccinated travelers will provide high quality and efficient tourism services. | 0.877 | 4.990 |
| 2. I can rely on destinations that accept travelers with vaccine passport/certificate. | 0.847 | 4.970 |
| 3. I believe that destinations that accept vaccine passport/certificate holders will be honest and sincere in addressing my concerns. | 0.786 | 4.960 |
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| Factor 3 Risk perception for vaccine passport | ||
| 1. The thought of launching a vaccine passport/certificate makes me feel anxious. | 0.911 | 2.520 |
| 2. The thought of traveling with a vaccine passport/certificate makes me feel psychologically uncomfortable. | 0.918 | 2.370 |
| 3. Traveling with a vaccine passport/certificate is risky. | 0.917 | 2.440 |
| 4. Traveling with a vaccine passport/certificate creates a higher chance of getting the COVID-19. | 0.910 | 2.370 |
| 5. I worry about paying extra fees when traveling with a vaccine passport/certificate. | 0.910 | 2.450 |
| 6. I am concerned that traveling with a vaccine passport/certificate will incur additional unexpected costs. | 0.889 | 2.400 |
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| Factor 4 Perception of incentives | ||
| 1. It is tempting that hotels offer room discounts for vaccine passport/certificate holders. | 0.879 | 5.020 |
| 2. It is tempting that some hotels offer free beverage for vaccine passport/certificate holders. | 0.861 | 4.730 |
| 3. It is tempting that the airline companies offer airline ticket discounts for vaccine passport/certificate holders. | 0.886 | 4.940 |
| 4. It is tempting that the airline companies offer ticket upgrade (first class, business class etc.) events for vaccine passport/certificate holders. | 0.877 | 4.920 |
| 5. It is tempting that the restaurants offer discounts events for vaccine passport/certificate holders. | 0.873 | 4.950 |
| 6. It is tempting that the restaurants offer a variety of events for vaccine passport/certificate holders. | 0.875 | 4.790 |
| 7. It is tempting that the tourism attractions offer free ticket events for vaccine passport/certificate holders. | 0.892 | 4.970 |
| 8. It is tempting that tourism attractions offer a variety of events for vaccine passport/certificate holders. | 0.894 | 4.920 |
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| Factor 5 Attitude toward the use of vaccine passport for travel abroad | ||
| 1. For me, traveling abroad with a vaccine passport/certificate is a positive/negative thing. | 0.898 | 4.780 |
| 2. For me, traveling abroad with a vaccine passport/certificate is a wise/senseless thing. | 0.876 | 4.590 |
| 3. For me, traveling abroad with a vaccine passport/certificate is a beneficial/harmful thing. | 0.882 | 4.680 |
| 4. For me, traveling abroad with a vaccine passport/certificate is a pleasant/unpleasant thing. | 0.886 | 4.700 |
| 5. For me, traveling abroad with a vaccine passport/certificate is an extremely desirable/undesirable. | 0.892 | 4.770 |
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| Factor 6 Intention to travel abroad | ||
| 1. I am willing to travel abroad, once a vaccine passport/certificate is issued | 0.883 | 4.440 |
| 2. I prefer to travel abroad with a vaccine passport/certificate during COVID-19 period. | 0.852 | 4.170 |
| 3. I plan to travel abroad, once a vaccine passport/certificate is issued. | 0.892 | 4.250 |
| 4. If a vaccine passport/certificate is available, I will travel abroad within 12 months. | 0.871 | 4.180 |
| 5. I want to travel abroad without quarantine for 2 weeks with a vaccine passport/certificate. | 0.881 | 4.470 |
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| Factor 7 Intention to travel abroad | ||
| 1. For me, traveling domestically with a vaccine passport/certificate is a positive/negative thing. | 0.824 | 5.280 |
| 2. For me, traveling domestically with a vaccine passport/certificate is a wise/senseless thing. | 0.821 | 5.210 |
| 3. For me, traveling domestically with a vaccine passport/certificate is a beneficial/harmful thing. | 0.801 | 5.300 |
| 4. For me, traveling domestically with a vaccine passport/certificate is a pleasant/unpleasant thing. | 0.807 | 5.210 |
| 5. For me, traveling domestically with a vaccine passport/certificate is an extremely desirable/undesirable thing. | 0.822 | 5.150 |
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| Factor 8 Intention to travel domestically | ||
| 1. I prefer to travel domestically with a vaccine passport/certificate during COVID-19 period. | 0.858 | 5.190 |
| 2. I plan to travel domestically, once a vaccine passport/certificate is issued. | 0.806 | 5.240 |
| 3. If a vaccine passport/certificate is available, I will travel domestically within 12 months. | 0.783 | 5.320 |